An elevation is different. It shows the face of something, or perhaps more correct, the projection of an object/s to a plane. But my testing suggests it produces SECTIONS, not elevations.
Yes, you can use abbreviations in tables and figures. All abbreviations used in tables and figures should be defined in the table note or figure caption, respectively, even though the abbreviations will be also be defined in the text if they are used there.
The symbols used to denote inches are the double prime for shorthand, and the scientific in.. The double prime is often substituted with quotation marks, as both consist of a pair of small tick-marks similar to apostrophes. It is not to be confused with the unpaired prime, which indicates feet. Continue Reading.